Hey Hefner, I had this RBTA for over 7 months, it does bubble up and was bubbled up right beore I placed it in my frag tank, so I believe it is a little stressed right now. I removed it from my system because It began moving and I didnt want it to sting any of my SPS's. I believe I have some pix of when it was bubbled up not sure if that will help. It has split about 2 times while in my system, but I sold off all the smaller ones...